KATOOMBA, Blue Mountains, NSW, Australia - Police in the Blue Mountains, Lithgow and the Central West including Oberon are urging drivers to take care following three separate fatal crashes on New South Wales roads over the weekend.

Wet weather has plagued the state in recent days and police are concerned as there are forecasts of continuing rain, which means conditions on NSW roads will remain hazardous.

Three people are dead as a result of the crashes which occurred on the weekend.

About 2am on Saturday, a woman was killed after the car she was driving and another carcollided head-on, on the Pacific Highway, at Cams Wharf. The driver of the second car was taken to hospital with serious injuries.

About 2.30pm on Saturday, a man died after the B-double truck he was driving left the roadway on the Newell Highway, Tooraweenah, 44 kilometres north west of Gilgandra in the satte's Central West, and drove down an embankment.

About 2.30pm on Sunday, a woman died after the car she was in, left the roadway on Gundagai Road, Eurongilly, and hit a tree. The driver was taken to hospital with critical injuries. Picnic jockey Samara Johnson was later named as the person killed. Her partner, Canberra trainer Garry Kirkup is in an induced coma in Canberra Hospitaland is in critical condition.

Investigations into each of the crashes are continuing and police are urging anyone with information to come forward.

With rain continuing to fall in many parts of New South Wales, Assistant Commissioner Michael Corboy of the Traffic & Highway Patrol Command, is urging motorists to take extra care.

“Road users should drive, ride, cycle, and walk to the conditions, which in many parts of NSW is currently experiencing significant rain and wind conditions."

“The best tip I can offer is for people to slow down. When you slow down it increases your braking distance and time to react to dangers on the road.," he said.

“In areas where there is serious rainfall, we urge drivers to pull over where safe to do so and wait for the weather to pass before continuing their journey."

“In heavy weather, visibility can be poor, so it is important for cyclists, pedestrians and motorcyclists to wear bright and reflective clothing," Assistant Commissioner Corboy added.

“Do not cross flooded waters under any circumstances, it’s not worth the risk."

“We have already lost 351 lives this year. Drivers need to consider whether it is necessary to drive during extreme weather events, and if it is necessary, slow down and take extra care,” the assistant commissioner said.